Create composite SLOs in the UI
Configuration
To create a composite SLO in the Nobl9 UI:
- Go to Service Level Objectives tab.
- Click
. - Select a service from the drop-down list to tag the service this SLO applies to.
- Select a data source from the drop-down list.
- Select the type of metric and enter a Query for the metric you selected
- Define a time window for the SLO.
- Specify the error budget calculation method and your objective(s).
- Define SLO attributes.
- Select the Create Composite SLO checkbox and follow these steps:
- Specify the Target value. Define the percentage of good events out of total events that you want to meet the target values.
- Specify the Error Budget Burn value. Define the condition when the composite SLO’s error budget is burning.
- Specify the Target value. Define the percentage of good events out of total events that you want to meet the target values.
- Click Create SLO
For details on how to configure a query for each data source, refer to the in-app help panels in the Nobl9 UI or to the Nobl9 documentation.
You can define up to 12 objectives for an SLO.
For the Occurrences method:
For the Time Slices method:
You can also define a composite SLO in a YAML file. Refer to the YAML Guide for more details.
Composite SLOs in the grid view
You can view your composite SLOs in the grid view in the Nobl9 UI.
Here, you can see the composite SLO’s reliability burn down chart, and remaining error budget.
You can identify the composite SLOs by their special icon 
and blue header:
You can add an annotation to a composite SLO. The added annotation appears in all the charts for the composite SLO and the objectives.
Check out the configuration video:
It takes a few minutes for the data to be populated. Remember: if you selected a longer time window, it may take longer for the chart to appear as the data is downsampled into larger slices for the chart view.